139913680

素因数分解:

$2^4\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2531}}^1$

素因数の和:3235

約数の個数: 40

約数和(自身を含む): 325898784

約数和(自身を除く): 185985104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 691, 1382, 2531, 2764, 3455, 5062, 5528, 6910, 10124, 11056, 12655, 13820, 20248, 25310, 27640, 40496, 50620, 55280, 101240, 202480, 1748921, 3497842, 6995684, 8744605, 13991368, 17489210, 27982736, 34978420, 69956840, 139913680]

約数ペア:

[(1, 139913680), (2, 69956840), (4, 34978420), (5, 27982736), (8, 17489210), (10, 13991368), (16, 8744605), (20, 6995684), (40, 3497842), (80, 1748921), (691, 202480), (1382, 101240), (2531, 55280), (2764, 50620), (3455, 40496), (5062, 27640), (5528, 25310), (6910, 20248), (10124, 13820), (11056, 12655)]